I would not run switched power to all those components just yet. Try unplugging one at a time while monitoring the current drain. If you can isolate the component responsible for the drain, you may be able to fix or replace it.

One more thing to consider. The car "goes to sleep" after about 15 minutes or so. Therefore, you want to be sure that you are measuring the current drain after the car goes to sleep. (Or, at least confirm that it is actually going to sleep.) It could be something bigger, like a failure that is not letting the car go to sleep mode.

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